Vehicle controller testing method based on V mode

Abstract

The invention relates to a vehicle controller testing method based on the V mode. The invention is characterized in that one end of a broken line device is connected with a vehicle wire harness and divides input signals of a vehicle controller into two parts, wherein, one part of the signals are connected with dSPACE, and the other part is connected with a controller to be tested; analog quantity and digital quantity output of dSPACE is connected with the vehicle wire harness, and analog quantity and digital quantity output of the controller to be tested is not connected with the vehicle wire harness; output CAN signals of dSPACE communicate with the vehicle and control the operation of the vehicle, while output CAN signals of the controller to be tested do not communicate with the vehicle; therefore, real time synchronization of output signals of dSPACE and the controller to be tested is realized, output signals of dSPACE are used as desired values for the controller to be tested, and it is convenient to spot output errors of the vehicle controller in the process of testing since dSPACE and the controller to be tested have different BSG demand torque but identical engine demand torque and PM motor demand torque. According to the invention, testing coverage of the vehicle controller is improved through different functional tests; difficulty in positioning errors is reduced by respective testing of each function; a plurality of functions can be tested at the same time, and functional tests in the testing process of No. 4 test and No. 5 test can be carried out simultaneously, thereby shortening a testing period.

Description

technical field [0001] The invention relates to a testing method for a vehicle controller based on a V mode, which is applicable to the development of a vehicle controller of a hybrid power system with various structures, and belongs to the testing technology of a vehicle controller. Background technique [0002] With the wide application of automotive electronic control systems, the requirements for its quality and reliability are getting higher and higher. However, in the fiercely competitive environment of the global automobile market, manufacturers are required to quickly and flexibly develop automotive electronic control system products, shorten the cycle from decision-making, design, testing to production, and reduce development costs as much as possible. At present, vehicle controllers are mostly tested with hardware in the loop, but due to the large amount of calculation of the expected value of the test results, the test cycle is longer, and there are certain differ...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of vehicle controller test method based on V mode, solve the problem that the calculation of the expected value of the test result is cumbersome, and the test environment is different from the real environment, so as to shorten the test cycle and improve the quality of the test; The controller under test is mostly consistent with the output of dSPACE, but it can also quickly find the inconsistencies between the two, so as to quickly find the problems in the controller under test

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